Example usage for io.netty.channel ChannelHandlerContext pipeline

Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext pipeline.

Prototype

ChannelPipeline pipeline();

Source Link

Document

Return the assigned ChannelPipeline

Usage

From source file:org.jfxvnc.net.rfb.codec.decoder.FramebufferUpdateRectDecoder.java

License:Apache License

@Override
public boolean decode(ChannelHandlerContext ctx, ByteBuf m, List<Object> out) throws Exception {

    if (state == State.INIT) {
        logger.debug("init readable {} bytes", m.readableBytes());
        if (!m.isReadable()) {
            return false;
        }/*from   ww w  . j  av  a  2  s .com*/
        if (m.getByte(0) != ServerEvent.FRAMEBUFFER_UPDATE.getType()) {
            logger.error("no FBU type!!! {}", m.getByte(0));
            ctx.pipeline().fireChannelReadComplete();
            return false;
        }
        if (!m.isReadable(4)) {
            return false;
        }
        m.skipBytes(2); // padding
        numberRects = m.readUnsignedShort();
        currentRect = 0;
        logger.debug("number of rectangles: {}", numberRects);
        if (numberRects < 1) {
            return true;
        }
        state = State.NEW_RECT;
    }

    if (state == State.NEW_RECT) {
        if (!readRect(ctx, m, out)) {
            return false;
        }
        state = State.READ_RECT;
    }

    FrameRectDecoder dec = frameRectDecoder.get(rect.getEncoding());
    if (dec == null) {
        throw new ProtocolException("Encoding not supported: " + rect.getEncoding());
    }
    dec.setRect(rect);
    if (!dec.decode(ctx, m, out)) {
        return false;
    }

    if (currentRect == numberRects) {
        state = State.INIT;
        ctx.pipeline().fireUserEventTriggered(ProtocolState.FBU_REQUEST);
        return true;
    }

    if (!readRect(ctx, m, out)) {
        state = State.NEW_RECT;
    }
    return false;
}

---

From source file:org.jfxvnc.net.rfb.codec.decoder.FramebufferUpdateRectDecoder.java

License:Apache License

private boolean readRect(ChannelHandlerContext ctx, ByteBuf m, List<Object> out) {
    if (!m.isReadable(12)) {
        return false;
    }//from   w w w.  j  a v  a  2 s . co m
    int x = m.readUnsignedShort();
    int y = m.readUnsignedShort();
    int w = m.readUnsignedShort();
    int h = m.readUnsignedShort();
    int enc = m.readInt();

    rect = new FrameRect(x, y, w, h, Encoding.valueOf(enc));
    currentRect++;
    logger.debug("{}of{} - ({}) {}", currentRect, numberRects, rect, enc);

    if (w == 0 || h == 0) {
        if (currentRect == numberRects) {
            state = State.INIT;
            ctx.pipeline().fireUserEventTriggered(ProtocolState.FBU_REQUEST);
            return true;
        }
        return false;
    }
    return true;
}

---

From source file:org.jfxvnc.net.rfb.codec.decoder.ProtocolVersionDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    if (!in.isReadable(length)) {
        return;/*from w  w  w  .j  av a  2s  .c o m*/
    }
    byte[] rfb = new byte[length];
    in.readBytes(rfb);
    String rfbVersion = new String(rfb, ASCII);
    out.add(new ProtocolVersion(rfbVersion));
    ctx.pipeline().remove(this);
}

---

From source file:org.jfxvnc.net.rfb.codec.encoder.PixelFormatEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, PixelFormat pf, ByteBuf out) throws Exception {
    out.writeByte(ClientEventType.SET_PIXEL_FORMAT);
    out.writeZero(3); // padding
    out.writeByte(pf.getBitPerPixel());/*  w w w  . j  a  v a  2s .  c  o  m*/
    out.writeByte(pf.getDepth());
    out.writeBoolean(pf.isBigEndian());
    out.writeBoolean(pf.isTrueColor());
    out.writeShort(pf.getRedMax());
    out.writeShort(pf.getGreenMax());
    out.writeShort(pf.getBlueMax());
    out.writeByte(pf.getRedShift());
    out.writeByte(pf.getGreenShift());
    out.writeByte(pf.getBlueShift());
    out.writeZero(3); // padding

    ctx.pipeline().remove(this);
}

---

From source file:org.jfxvnc.net.rfb.codec.encoder.PreferedEncodingEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, PreferedEncoding enc, ByteBuf out) throws Exception {
    out.writeByte(ClientEventType.SET_ENCODINGS);
    out.writeZero(1); // padding
    out.writeShort(enc.getEncodings().length);
    Arrays.stream(enc.getEncodings()).forEach(e -> out.writeInt(e.getType()));

    ctx.pipeline().remove(this);
}

---

From source file:org.jfxvnc.net.rfb.codec.ProtocolHandler.java

License:Apache License

@Override
public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
    if (config.sslProperty().get()) {
        if (sslContext == null) {
            sslContext = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE)
                    .build();//from  w  w w .j a  v a 2s . com
        }
        ctx.pipeline().addFirst("ssl-handler", sslContext.newHandler(ctx.channel().alloc()));
    }
    super.channelRegistered(ctx);
}

---

From source file:org.jfxvnc.net.rfb.codec.ProtocolHandler.java

License:Apache License

@Override
protected void decode(final ChannelHandlerContext ctx, Object msg, List<Object> out) throws Exception {

    if (msg instanceof ImageRect) {
        render.render((ImageRect) msg, () -> {
            // logger.debug("render completed");
            // sendFramebufferUpdateRequest(ctx, true, 0, 0,
            // serverInit.getFrameBufferWidth(),
            // serverInit.getFrameBufferHeight());

        });/*from  w w w .jav  a  2 s .c  o  m*/
        return;
    }
    if (msg instanceof ServerDecoderEvent) {
        render.eventReceived((ServerDecoderEvent) msg);
        return;
    }

    if (!(msg instanceof ServerInitEvent)) {
        logger.error("unknown message: {}", msg);
        ctx.fireChannelRead(msg);
        return;
    }

    serverInit = (ServerInitEvent) msg;
    logger.debug("handshake completed with {}", serverInit);

    FrameDecoderHandler frameHandler = new FrameDecoderHandler(serverInit.getPixelFormat());
    if (!frameHandler.isPixelFormatSupported()) {
        ProtocolException e = new ProtocolException(String.format("pixelformat: (%s bpp) not supported yet",
                serverInit.getPixelFormat().getBitPerPixel()));
        exceptionCaught(ctx, e);
        return;
    }

    ChannelPipeline cp = ctx.pipeline();

    cp.addBefore(ctx.name(), "rfb-encoding-encoder", new PreferedEncodingEncoder());
    PreferedEncoding prefEncodings = getPreferedEncodings(frameHandler.getSupportedEncodings());
    ctx.write(prefEncodings);

    cp.addBefore(ctx.name(), "rfb-pixelformat-encoder", new PixelFormatEncoder());
    ctx.write(serverInit.getPixelFormat());
    ctx.flush();

    cp.addBefore(ctx.name(), "rfb-frame-handler", frameHandler);
    cp.addBefore(ctx.name(), "rfb-keyevent-encoder", new KeyButtonEventEncoder());
    cp.addBefore(ctx.name(), "rfb-pointerevent-encoder", new PointerEventEncoder());
    cp.addBefore(ctx.name(), "rfb-cuttext-encoder", new ClientCutTextEncoder());

    render.eventReceived(getConnectInfoEvent(ctx, prefEncodings));

    render.registerInputEventListener(event -> ctx.writeAndFlush(event, ctx.voidPromise()));

    logger.debug("request full framebuffer update");
    sendFramebufferUpdateRequest(ctx, false, 0, 0, serverInit.getFrameBufferWidth(),
            serverInit.getFrameBufferHeight());

    logger.trace("channel pipeline: {}", cp.toMap().keySet());
}

---

From source file:org.jfxvnc.net.rfb.codec.ProtocolHandler.java

License:Apache License

@Override
public void handlerAdded(ChannelHandlerContext ctx) {
    ChannelPipeline cp = ctx.pipeline();
    if (cp.get(ProtocolHandshakeHandler.class) == null) {
        cp.addBefore(ctx.name(), "rfb-handshake-handler", new ProtocolHandshakeHandler(config));
    }/*  w  w w.j  a  v a2 s.c  om*/
}

---

From source file:org.jfxvnc.net.rfb.codec.ProtocolHandshakeHandler.java

License:Apache License

@Override
public void channelActive(final ChannelHandlerContext ctx) throws Exception {
    ctx.pipeline().addBefore(ctx.name(), "rfb-version-decoder", new ProtocolVersionDecoder());
}

---

From source file:org.jfxvnc.net.rfb.codec.ProtocolHandshakeHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {

    if (msg instanceof ProtocolVersion) {
        handleServerVersion(ctx, (ProtocolVersion) msg);
        return;//from  w w w.  j  a  v a  2 s .  co  m
    }
    if (msg instanceof SecurityTypesEvent) {
        handleSecurityTypes(ctx, (SecurityTypesEvent) msg);
        return;
    }

    if (msg instanceof RfbSecurityMessage) {
        handleSecurityMessage(ctx, (RfbSecurityMessage) msg);
        return;
    }

    if (msg instanceof SecurityResultEvent) {
        handleSecurityResult(ctx, (SecurityResultEvent) msg);
        return;
    }

    if (msg instanceof ServerInitEvent) {
        handshaker.finishHandshake(ctx.channel(), config.versionProperty().get());
        ChannelPipeline cp = ctx.pipeline();
        cp.fireUserEventTriggered(ProtocolState.HANDSHAKE_COMPLETE);
        cp.remove(this);
        cp.fireChannelRead(msg);
        return;
    }

    throw new ProtocolException("unknown message occurred: " + msg);

}

---

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